CHARLOTTE, N.C. — Carolina Panthers defensive end Greg Hardy is seeking immediate reinstatement from the NFL after a federal judge cleared way for Adrian Peterson’s return to the league.

Hardy’s agent Drew Rosenhaus said Thursday, “We are working very closely with the NFLPA on this process.”

Like Peterson, Hardy spent the majority of last season on the commissioner’s exempt list preventing him from playing.

Hardy, 26, was convicted last summer on two counts of domestic violence. He appealed and had both charges dismissed Feb. 9 when his accuser couldn’t be located to testify.

A federal judge opened the door for faster reinstatement of Peterson when he ruled an NFL arbitrator “failed to meet his duty” in a child abuse case against the star running back. U.S. District Judge David Doty overruled NFL arbitrator Harold Henderson’s December denial of Peterson’s appeal.

Doty said the league can’t retroactively apply the standards of its new personal conduct policy to an action by Peterson that happened before the policy was in place.

NFL spokesman Brian McCarthy said in an email the ruling on Peterson is “irrelevant” to Hardy’s case. Hardy “hasn’t been disciplined,” McCarthy said. “There is nothing for him to seek reinstatement from at this point. His case remains under review.”

The 6-foot-4, 275-pound Hardy will become an unrestricted free agent March 10.

Titans

LINEMAN ROOS RETIRES AFTER 10 SEASONS: Tennessee left tackle Michael Roos is retiring after playing 10 seasons and 148 games with the Titans.

“After 10 years as a Tennessee Titan I have decided to retire from football,” Roos wrote on Instagram. “I have given this decision much consideration. I feel fortunate to have played this long coming from a TE turned DE turned OT from Eastern Washington University.”

Roos ranked second only to Dominic Raiola (155) for starts by offensive linemen since 2005. The 41st pick in 2005, Roos was an All Pro and Pro Bowler in 2008 as the Titans went an NFL-best 13-3. He helped block for Chris Johnson’s 2,006-yard season in 2009.

Colts

BACKUP QB HASSELBECK RE-SIGNS: Matt Hasselbeck wanted one more shot at a Super Bowl ring. The Colts are giving him a chance.

A month after his team lost in the AFC championship game, the 39-year-old quarterback signed a one-year contract extension with the Colts. Financial terms of the deal were not available.

The signing allows Indianapolis to keep the AFC South’s best quarterback tandem intact. Over the past two seasons, Hasselbeck has provided his wisdom and perspective for the much younger Andrew Luck. Hasselbeck also played in seven games during that time, completing 37 of 56 passes for 431 yards, two touchdowns and one interception for a 93.7 passer rating.

Around the league

The Bills are negotiating to sign veteran Josh McCown to address their long-standing needs at quarterback. McCown is a 12-year NFL veteran who went 1-10 in his only season with Tampa Bay before being released by the team earlier this month. ... The Chiefs waived tight end Anthony Fasano, freeing up about $2 million in salary cap space that they could use to keep All-Pro linebacker Justin Houston. ... The Jaguars released veteran cornerback Will Blackmon.